1. the second electron transport chain ends with a(n) that creates nadph. a. enzyme b. glucose c. water d. none of the above 2. what mediates the reduction of carbohydrates during the calvin cycle? a. water b. enzymes c. electrons d. none of the above 3. the electron transport chain is where electron energy is converted into a. dna b. atp c. rna d. water 4. the final product of is glucose. a. cellular respiration b. the light dependent reaction c. the calvin cycle d. none of the above 5. every glucose molecule that enters glycolysis yields 2 molecules. a. nadh b. dna c. pga d. none of the above 6.when oxygen is available, a cell will begin the krebs cycle after a. the calvin cycle. b. glycolysis. c. the electron transport chain. d. none of the above 7. n

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Where can you find prokaryotic and eukaryotic cells?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils